Hunting Rifle Recoilless Buttstock

ABSTRACT

Stock for a recoilless hunting rifle, for medium and large caliber hunting guns, which eliminates the stress produced by the effect of the recoil on the shooter&#39;s shoulder, providing at the same time a good targeting precision and a reduced consumption of bullet cartridges or shot cartridges. The stock has a stock butt and a mechanical anti-recoil module, with fast assembling, and a gun stock resembling the classical gun stocks but without transferring the recoil force to the shooter&#39;s shoulder. The recoilless buttstock comprises a mechanical anti-recoil module, presented as an assembly comprising a coupling member, an elastic mechanism, a fixed seating with rollers, a superior guide with spring, an inferior guide with spring and the case of the stock.

This invention relates to a hunting rifle recoilless buttstock, intended to be used for medium and large caliber hunting rifles, in order to eliminate the stress produced by the recoil force in the shooter's shoulder, providing in the same time a good targeting precision and a reduced consumption of ammunition.

Classical hunting rifles are known, in which, in order to partially eliminate the recoil shock in the shooter's shoulder at firing, the butt of the stock is provided with a rubber cap with rectangular openings, which practically does not absorb the impact, attenuating only a small percent of the recoil force, which leads to a high stress and fear for the shooter.

The technical issue this invention address is to totally or partially reduce the effect of the shock in the shooter's shoulder, generated by the recoil forces that appear at the firing moment, when the bullet leave the barrel.

The technical issue this invention address is to simultaneously annihilate the recoil force effect and increase the targeting precision and save the bullet cartridges or shot cartridges.

The hunting rifle recoilless buttstock according to this invention avoids the foresaid drawbacks, comprising a forend that connects the stock and the receiver and a mechanical anti-recoil module connected to the butt of the stock through a vertical blocking screw.

The hunting rifle recoilless buttstock according to this invention avoids the foresaid drawbacks by using a stock butt comprising a butt's body having the stock shape, provided with holes, the entry, a vertical hole, cylindrical openings, a fastening screw for the receiver, the plug I and the plug II.

The hunting rifle recoilless buttstock according to this invention avoids the foresaid drawbacks by attaching a mechanical anti-recoil module to the gun stock's butt through a vertical screw, providing a classical stock butt configuration.

The mechanical anti-recoil module according to this invention avoids the foresaid drawbacks by comprising a coupling member, an anti-recoil elastic mechanism, a fixed seating with rollers, a superior guide with a spring, an inferior guide with a spring and the case of the stock.

The mechanical anti-recoil module according to this invention avoids the foresaid drawbacks by comprising a fixed joint plate provided with mounting holes, screwed fitting and rods provided with gliding longitudinal notch, securing screw, joint pivot, lock, pushing lever, joint spring carrying pivot, lock, absorption spring, long lever, gliding spring carrying joint rivet, washer, screwed spring carrying pivot, absorption spring II, screwed spring carrying pivot and pulling and canceling spring.

The fixed seating with rollers according to this invention avoids the foresaid drawbacks by guiding and blocking the long levers carrying compensation springs and pulling and canceling springs which store and cancel the recoil energy.

The fixed seating with rollers according to this invention comprises a fixed central support, roller carrier pivot, blocking roller, compression spring, bed plate, mounting screws, adjustment screw, screwed spring carrying pivot. The fixed seating with rollers according to this invention is provided with a circular notch, a longitudinal opening, passage holes, screwed passage holes for mounting the working accessories: compression spring, roller carrier pivot, screwed roller carrier pivot. The superior guide with compression spring according to this invention avoids the foresaid drawbacks by connecting the coupling member with the bed plate, in the same time absorbing and storing part of the recoil energy.

The superior guide with spring according to this invention comprises screwed rods, ending ring, compression spring, guide assembly bolt, cylindrical member with screwed fitting, bolt nut.

The inferior guide with spring according to this invention avoids the foresaid drawbacks by acting as a mobile connector between the coupling member and the bed plate, forming a parallelogram whose shape is deformable in the direction of the recoil force.

The superior guide with spring according to this invention comprises screwed rods, spring guiding ring, compression spring, assembly and guiding bolt, cylindrical member with screwed fitting, bolt nut.

The hunting rifle recoilless buttstock removes the aforementioned drawbacks by introducing the elastic anti-recoil mechanism, the coupling member, the combined central support, the superior guide and the gliding inferior guide into the stock case having the shape and aspect of a classical hunting rifle stock, which is mounted on the receiver of the gun with square shoulder screws, this way obtaining the configuration of a classical hunting gun stock.

The hunting rifle recoilless buttstock according to this invention has the following advantages:

-   -   It removes the shooter's stress generated by the impact of the         recoil force on the shooter's shoulder;     -   It increases the targeting precision and the bullet grouping in         the target;     -   It reduces the excessive consumption of bullet cartridges or         shot cartridges.

Following is an example of implementing the invention, in connection with FIGS. 1 to 9, which represent:

FIG. 1—Vertical-longitudinal plane crossing of the recoilless hunting rifle stock.

FIG. 2—Horizontal-longitudinal A-A plane section of the recoilless hunting rifle stock in FIG. 1.

FIG. 3—Longitudinal section in vertical plane for the stock coupling forend A in FIG. 1.

FIG. 4—Vertical-longitudinal plane section of the mechanical anti-recoil module B in FIG. 1.

FIG. 5—Lateral longitudinal sight of the elastic anti-recoil mechanism X in FIG. 4.

FIG. 6—Horizontal-longitudinal A-A plane section of the elastic anti-recoil mechanism X in FIG. 5.

FIG. 7—Vertical longitudinal section of the fixed seating with rollers Y in FIG. 1.

FIG. 8—Vertical longitudinal plane section of the superior guide with spring in FIG. 1.

FIG. 9—Vertical longitudinal plane section of the inferior guide with spring in FIG. 1.

The hunting rifle recoilless buttstock according to this invention comprises a stock butt A and a mechanical anti-recoil module B (FIG. 1).

The stock butt A (FIG. 3) comprises a stock body 1, provided with a passing hole a, a screwed vertical hole b and the cylindrical workups c, continuing with the mounting screw 2, the vertical blocking screw 3, the plug I 4 and the plug II 5.

The hunting rifle recoilless buttstock according to this invention comprises a mechanical anti-recoil module B which takes up, absorbs and cancels the recoil force and comprises: the coupling member 6, the mounting screw 7, the elastic anti-recoil mechanism X, the fixed seating with rollers Y, the superior guide with spring Z, the inferior guide with spring K and the case of the stock 39 (FIG. 1, FIG. 2, FIG. 4).

The elastic anti-recoil mechanism X (FIG. 5, FIG. 6) according to this invention consists of the fixed joint plate 8, provided with passing holes a, screwed fitting e and rods provided with gliding notch, e., and furthermore joint pivot 9, lock 10, pushing lever 11, joint spring carrying pivot 12, lock 13, absorption spring I 14, long lever 15, joint rivet 16, washer 17, screwed spring carrying pivot I 18, absorption spring II 14, screwed spring carrying pivot II 19 and canceling spring 20.

The fixed seating with rollers Y (FIG. 4, FIG. 7) according to this invention comprises the fixed central support 21, the roller carrier pivot 22, the blocking rollers 23, the blocking-compensation spring 24, the bed plate 25, the mounting screws 26, the adjustment screw 27, the screwed spring carrying pivot III 28.

The fixed seating with rollers Y (FIG. 4, FIG. 7) according to this invention is provided with the following workups: a circular notch r, a longitudinal opening p, passage holes s, screwed passage holes k.

The mechanical anti-recoil module B (FIG. 4) according to this invention comprises a superior guide with spring Z (FIG. 8) which comprises screwed rods 29, ending ring 30, upper return spring 31, guiding bolt 32, screwed guiding member 33, bolt nut 34.

The mechanical anti-recoil module B according to this invention comprises an inferior guide with spring K (FIG. 9) according to this invention which comprises screwed rods 35, guiding ring 36, lower return spring 37, guiding bolt 38, screwed guiding member 39, bolt nut 34.

The hunting rifle recoilless buttstock according to this invention (FIG. 1, FIG. 4) comprises a stock case 40, having the shape and aspect of a classical hunting rifle stock. 

1-6. (canceled)
 7. A hunting rifle recoilles buttstock comprising a stock body provided with a passing hole and a mounting screw, an anti-recoil module including a coupling part, an elastic anti-recoil mechanism and a fixed support with rollers, an upper guide with a first spring and a lower guide with a second spring, wherein the elastic anti-recoil mechanism comprises a fixed joint plate, which by means of a joint pivot having a lock is articulated to an end of the pushing levers, the other end of which by means of the joint spring carrying pivot having locks are articulated to the long levers, said long levers being joined at their center by a joint rivet, while their other ends are articulated to the screwed spring carrying pivots, said elastic anti-recoil mechanism being provided with absorption springs, annulling springs and blocking-compensation springs and having an operation relationship to said fixed support with rollers and upper and lower return springs.
 8. The hunting rifle recoilless buttstock of claim 7, wherein a first absorption spring is arranged between said joint spring carrying pivots at each of their ends, a second absorption spring is arranged between said screwed spring carrying pivots at each of their ends, while said annulling springs by means of the respectively screwed spring carrying pivots, are arranged between the back ends of said long levers and said fixed support with rollers.
 9. The hunting rifle recoilless buttstock of claim 7, wherein said fixed support with rollers comprises a fixed central support, blocking rollers, which are mounted on corresponding roller carrier pivots, a blocking-compensation spring, which is mounted within a circular notch, said central support being fitted on a bed plate by means of the mounting screws.
 10. The hunting rifle recoilless buttstock of claim 7, wherein at its upper and lower parts, said fixed central support has screwed spring carrying pivots for said annulling springs, and the bed plate is provided with an adjustment screw.
 11. The hunting rifle recoilless buttstock of claim 8, wherein at its upper and lower parts, said fixed central support has screwed spring carrying pivots for said annulling springs, and the bed plate is provided with an adjustment screw.
 12. The hunting rifle recoilless buttstock of claim 9, wherein at its upper and lower parts, said fixed central support has screwed spring carrying pivots for said annulling springs, and the bed plate is provided with an adjustment screw.
 13. The hunting rifle recoilless buttstock of claim 7, wherein the entire anti-recoil module is closed in a stock case which is fitted with the same mounting screw. 